| 摘要 |
A method of using ultrasound to inspect a part in immersion, by means of a focused beam of ultrasound waves oriented perpendicularly to the surface of the part, the method consisting, when the axis of the focused beam is close to an edge of the part, in tilting the axis towards said edge relative to the normal to the surface of the part in order to eliminate the lateral shadow zone over all or substantially all of the depth of the part.
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